bng

BNG is an acronym with several distinct meanings in different domains. Two prominent uses are in telecommunications and environmental planning.

Broadband Network Gateway: In telecom networks, a BNG is a network device at the edge of an operator's IP network that terminates subscriber sessions, typically over PPPoE, and forwards traffic to the core network. It handles subscriber authentication (often via RADIUS or Diameter), session management, address allocation, and policy enforcement. A BNG provides services such as DHCP, QoS, firewalling, NAT, and traffic shaping, and serves as the aggregation point between customer premises equipment and the service provider's backhaul. In modern architectures, BNGs may support virtualization, subscriber virtualization, and integration with optical access networks; some networks use centralized or distributed BNG deployments, depending on scale and latency requirements.

Biodiversity Net Gain: In environmental policy, Biodiversity Net Gain (BNG) is a planning and development principle requiring measures that leave biodiversity in a measurably better state than before a project. In the United Kingdom, BNG has been integrated into planning guidance and is intended to ensure a net positive impact on ecosystems. Practically, it involves establishing a baseline, setting target gains, designing improvements (habitat creation/restoration, management), tracking outcomes, and applying credits or mechanisms to balance losses. Critics note challenges in quantifying gains, ensuring additionality, and accounting for time lags.

Other uses: The acronym BNG can also refer to various organizations, projects, or products whose initials match, reflecting the term’s multiple, unrelated applications.